v3.26.1
Revenue (Details 1)
₨ in Millions, $ in Millions
12 Months Ended
Mar. 31, 2026
INR (₨)
Mar. 31, 2026
USD ($)
Mar. 31, 2025
INR (₨)
Mar. 31, 2024
INR (₨)
Disclosure of disaggregation of revenue from contracts with customers [line items]        
Revenue ₨ 44,877 $ 474 ₨ 39,886 ₨ 35,634
at a point in time [Member]        
Disclosure of disaggregation of revenue from contracts with customers [line items]        
Revenue 2,895   2,743 1,683
over a period of time [Member]        
Disclosure of disaggregation of revenue from contracts with customers [line items]        
Revenue 41,982   37,143 33,951
Revenue from voice services [Member]        
Disclosure of disaggregation of revenue from contracts with customers [line items]        
Revenue 143   169 206
Revenue from others [Member]        
Disclosure of disaggregation of revenue from contracts with customers [line items]        
Revenue 13,705   12,134 11,048
Revenue not attributable to Unified license [Member]        
Disclosure of disaggregation of revenue from contracts with customers [line items]        
Revenue ₨ 31,029   ₨ 27,583 ₨ 24,380